Very Very Nick at Nite (Sunday at...

Very Very Nick at Nite (Sunday at 9 p.m. on Nickelodeon) presents the “Very Very First Episodes” of “I Dream of Jeannie,” “Bewitched,” “The Mary Tyler Moore Show” and “Taxi.”

Monkee Davy Jones appears as himself in a classic episode of The Brady Bunch (Monday at 1:35 p.m. on TBS).

George Hamilton plays a police officer in Police Story (Monday at 3 p.m. on A&E;).

Danny DeVito’s real-life mom, Julia DeVito, plays Louie’s mom on a poignant Taxi (Monday at 10:30 p.m. on Nickelodeon).

Lucy and Ethel meet up with dashing Charles Boyer at a Parisian sidewalk cafe on I Love Lucy (Thursday at 9 p.m. on Nickelodeon).

Robert Vaughn guests on Columbo (Thursday at 11 a.m on A&E;) in an episode in which the detective’s cruise vacation is cut short when the ship’s vocalist is murdered.

Goober (George Lindsey) says “Hey!” when he visits his cousin on Gomer Pyle U.S.M.C. (Thursday at 2:05 a.m. on TBS).

Long before Kurt Russell ever met Goldie Hawn he starred as a jungle boy on Gilligan’s Island (Thursday at 5:05 a.m. on TBS).

A pre-”Cheers” George Wendt appears on Taxi (Thursday at 10:30 p.m. on Nickelodeon) in an episode in which Latka studies Playboy for tips on how to become a swinger.

TBS presents eight hours of Leave It to Beaver (Saturday beginning at 10:05 a.m.) in episodes highlighting the adventures of the Beav and Eddie Haskell.